Tenet Healthcare Corp (NYSE:THC) accused Community Health Systems Inc (NYSE:CYH) of admitting patients for needless stays and charging heavy bills on government and private insurers. This resulted in 36% drop in shares of Community Health Systems Inc. (NYSE:CYH). Shares of Tenet Healthcare also dropped 15%. This was a completely irresponsible act by Tenet as it will also affect Tenet negatively. Tuesday will be a good day to buy these shares at low price on Tuesday.

AA- Alcoa Inc. (NYSE:AA)

Alcoa, Inc. (NYSE:AA), a world leader in the production of aluminum, alumina and aluminum products reported Q1 earnings of 28 cents per share after the market close Monday, which is almost same as estimates of 27 cents per share. But Shares dropped in pre market as revenue in the quarter came to $5.96 billion lagging behind the Wall Street forecast of $6.08 billion last year.

WMS- WMS Industries Inc. (NYSE:WMS)WMS said on Monday that it expects Q4 sales of $210 million to $220 million compared with $213 million in sales a year ago. It also said fiscal 2011 growth rate will be 3-5%. Wall Street estimated Q4 sales of $234 million, and 2011 sales growth of 9%. Shares dropped heavily in extended hours.